diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal.sol
index 769d0cef7..7856c47b4 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal.sol
@@ -1,19 +1,19 @@
-function uSuffix(uint8, uint) pure suffix returns (int8) {}
-function uSuffix(uint16, uint) pure suffix returns (int16) {}
+function uSuffix(uint8, uint) pure suffix returns (uint) {}
+function uSuffix(uint16, uint) pure suffix returns (int) {}
 
-function iSuffix(int8, uint) pure suffix returns (int24) {}
-function iSuffix(int16, uint) pure suffix returns (int32) {}
+function iSuffix(int8, uint) pure suffix returns (uint) {}
+function iSuffix(int16, uint) pure suffix returns (int) {}
 
-function iuSuffix(uint8, uint) pure suffix returns (int40) {}
-function iuSuffix(int8, uint) pure suffix returns (int48) {}
+function iuSuffix(uint8, uint) pure suffix returns (int) {}
+function iuSuffix(int8, uint) pure suffix returns (uint) {}
 
 contract C {
-    int16 a = 1.024 uSuffix;
-    int32 b = 1.024 iSuffix;
+    int a = 1.024 uSuffix;
+    int b = 1.024 iSuffix;
 
-    int16 c = -1.024 uSuffix;
-    int32 d = -1.024 iSuffix;
+    int c = -1.024 uSuffix;
+    int d = -1.024 iSuffix;
 
-    int40 e = 2.55 iuSuffix;
-    int40 f = -2.55 iuSuffix;
+    int e = 2.55 iuSuffix;
+    int f = -2.55 iuSuffix;
 }
diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_sign.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_sign.sol
index 2a690cef7..2c8d110c5 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_sign.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_sign.sol
@@ -1,8 +1,8 @@
-function iuSuffix(uint8, uint) pure suffix returns (uint) {}
-function iuSuffix(int8, uint) pure suffix returns (uint) {}
+function iuSuffix(uint8, uint) pure suffix returns (int) {}
+function iuSuffix(int8, uint) pure suffix returns (int) {}
 
 contract C {
     uint a = 1.27 iuSuffix;
 }
 // ----
-// TypeError 4487: (153-161): No unique declaration found after argument-dependent lookup.
+// TypeError 4487: (151-159): No unique declaration found after argument-dependent lookup.
diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_size.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_size.sol
index 6151cf2c9..b65bb66a3 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_size.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_decimal_vs_decimal_ambiguous_size.sol
@@ -1,8 +1,8 @@
-function uSuffix(uint8, uint) pure suffix returns (uint) {}
-function uSuffix(uint16, uint) pure suffix returns (uint) {}
+function uSuffix(uint8, uint) pure suffix returns (int) {}
+function uSuffix(uint16, uint) pure suffix returns (int) {}
 
 contract C {
     uint a = 1.27 uSuffix;
 }
 // ----
-// TypeError 4487: (153-160): No unique declaration found after argument-dependent lookup.
+// TypeError 4487: (151-158): No unique declaration found after argument-dependent lookup.
diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal.sol
index 717d57d31..67bf0346a 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal.sol
@@ -1,10 +1,13 @@
-function suffix256(uint) pure suffix returns (uint) {}
-function suffix256(uint, uint) pure suffix returns (int) {}
+function suffix256(uint) pure suffix returns (bool) {}
+function suffix256(uint, uint) pure suffix returns (address) {}
 
-function suffix8(uint) pure suffix returns (uint8) {}
-function suffix8(uint8, uint) pure suffix returns (int8) {}
+function suffix8(uint) pure suffix returns (bool) {}
+function suffix8(uint8, uint) pure suffix returns (address) {}
 
 contract C {
-    int a = 1.1 suffix256;
-    uint8 b = 1024 suffix8;
+    // Not ambiguous: no way to convert 1.1 into uint.
+    address a = 1.1 suffix256;
+
+    // Not ambiguous: 1024 won't fit into uint8.
+    bool b = 1024 suffix8;
 }
diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal_ambiguous.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal_ambiguous.sol
index eaa874994..a575e1a5e 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal_ambiguous.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_decimal_ambiguous.sol
@@ -1,5 +1,5 @@
-function suffix(uint) pure suffix returns (int) {}
-function suffix(uint, uint) pure suffix returns (int) {}
+function suffix(uint) pure suffix returns (bool) {}
+function suffix(uint, uint) pure suffix returns (address) {}
 
 contract C {
     function f() public pure {
@@ -7,4 +7,4 @@ contract C {
     }
 }
 // ----
-// TypeError 4487: (171-177): No unique declaration found after argument-dependent lookup.
+// TypeError 4487: (176-182): No unique declaration found after argument-dependent lookup.
diff --git a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_integer.sol b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_integer.sol
index 17c9957b2..32d8e5f04 100644
--- a/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_integer.sol
+++ b/test/libsolidity/syntaxTests/literalSuffixes/parameters/overloading_integer_vs_integer.sol
@@ -1,19 +1,19 @@
-function uSuffix(uint8) pure suffix returns (int8) {}
-function uSuffix(uint16) pure suffix returns (int16) {}
+function uSuffix(uint8) pure suffix returns (uint) {}
+function uSuffix(uint16) pure suffix returns (int) {}
 
-function iSuffix(int8) pure suffix returns (int24) {}
-function iSuffix(int16) pure suffix returns (int32) {}
+function iSuffix(int8) pure suffix returns (uint) {}
+function iSuffix(int16) pure suffix returns (int) {}
 
-function iuSuffix(uint8) pure suffix returns (int40) {}
-function iuSuffix(int8) pure suffix returns (int48) {}
+function iuSuffix(uint8) pure suffix returns (int) {}
+function iuSuffix(int8) pure suffix returns (uint) {}
 
 contract C {
-    int16 a = 1024 uSuffix;
-    int32 b = 1024 iSuffix;
+    int a = 1024 uSuffix;
+    int b = 1024 iSuffix;
 
-    int16 c = -1024 uSuffix;
-    int32 d = -1024 iSuffix;
+    int c = -1024 uSuffix;
+    int d = -1024 iSuffix;
 
-    int40 e = 255 iuSuffix;
-    int40 f = -255 iuSuffix;
+    int e = 255 iuSuffix;
+    int f = -255 iuSuffix;
 }