Catch panic.

test/libsolidity/syntaxTests/tryCatch/double_panic.sol

@@ -0,0 +1,13 @@
+contract C {
+    function f() public {
+        try this.f() {
+        } catch Panic(bytes memory) {
+        } catch Panic(uint) {
+        }
+    }
+}
+// ====
+// EVMVersion: >=byzantium
+// ----
+// TypeError 1271: (72-109): Expected `catch Panic(uint ...) { ... }`.
+// TypeError 6732: (110-139): This try statement already has a "Panic" catch clause.

test/libsolidity/syntaxTests/tryCatch/double_panic_correct.sol

@@ -0,0 +1,12 @@
+contract C {
+    function f() public {
+        try this.f() {
+        } catch Panic(uint) {
+        } catch Panic(uint) {
+        }
+    }
+}
+// ====
+// EVMVersion: >=byzantium
+// ----
+// TypeError 6732: (102-131): This try statement already has a "Panic" catch clause.

test/libsolidity/syntaxTests/tryCatch/error_and_panic.sol

@@ -0,0 +1,11 @@
+contract C {
+    function f() public {
+        try this.f() {
+        } catch Error(string memory) {
+        } catch Panic(uint) {
+        }
+    }
+}
+// ====
+// EVMVersion: >=byzantium
+// ----

test/libsolidity/syntaxTests/tryCatch/invalid_error_name.sol

@@ -7,5 +7,5 @@ contract C {
     }
 }
 // ----
-// TypeError 3542: (93-119): Invalid catch clause name. Expected either `catch (...)` or `catch Error(...)`.
-// TypeError 3542: (120-143): Invalid catch clause name. Expected either `catch (...)` or `catch Error(...)`.
+// TypeError 3542: (93-119): Invalid catch clause name. Expected either `catch (...)`, `catch Error(...)`, or `catch Panic(...)`.
+// TypeError 3542: (120-143): Invalid catch clause name. Expected either `catch (...)`, `catch Error(...)`, or `catch Panic(...)`.

test/libsolidity/syntaxTests/tryCatch/wrong_panic.sol

@@ -0,0 +1,11 @@
+contract C {
+    function f() public {
+        try this.f() {
+        } catch Panic() {
+        }
+    }
+}
+// ====
+// EVMVersion: >=byzantium
+// ----
+// TypeError 1271: (72-97): Expected `catch Panic(uint ...) { ... }`.

test/libsolidity/syntaxTests/tryCatch/wrong_panic_2.sol

@@ -0,0 +1,11 @@
+contract C {
+    function f() public {
+        try this.f() {
+        } catch Panic(bytes memory) {
+        }
+    }
+}
+// ====
+// EVMVersion: >=byzantium
+// ----
+// TypeError 1271: (72-109): Expected `catch Panic(uint ...) { ... }`.