Support .offset and .length for calldata bytes and string arrays.

test/libsolidity/syntaxTests/inlineAssembly/invalid/calldata_array.sol

@@ -0,0 +1,9 @@
+contract C {
+    function f(uint[] calldata bytesAsCalldata) external {
+        assembly {
+            let x := bytesAsCalldata
+        }
+    }
+}
+// ----
+// TypeError 1397: (112-127): Call data elements cannot be accessed directly. Use ".offset" and ".length" to access the calldata offset and length of this array and then use "calldatacopy".

test/libsolidity/syntaxTests/inlineAssembly/invalid/calldata_array_offset.sol

@@ -0,0 +1,8 @@
+contract C {
+    function f(uint[] calldata bytesAsCalldata) external pure {
+        assembly {
+            let x := bytesAsCalldata.offset
+        }
+    }
+}
+// ----

test/libsolidity/syntaxTests/inlineAssembly/invalid/calldata_slot.sol

@@ -0,0 +1,9 @@
+contract C {
+    function f(bytes calldata bytesAsCalldata) external {
+        assembly {
+            let x := bytesAsCalldata.slot
+        }
+    }
+}
+// ----
+// TypeError 1536: (111-131): Calldata variables only support ".offset" and ".length".

test/libsolidity/syntaxTests/inlineAssembly/invalid/calldata_variables.sol

@@ -6,4 +6,4 @@ contract C {
     }
 }
 // ----
-// TypeError 2370: (111-126): Call data elements cannot be accessed directly. Copy to a local variable first or use "calldataload" or "calldatacopy" with manually determined offsets and sizes.
+// TypeError 1397: (111-126): Call data elements cannot be accessed directly. Use ".offset" and ".length" to access the calldata offset and length of this array and then use "calldatacopy".

test/libsolidity/syntaxTests/inlineAssembly/invalid/storage_assignment.sol

@@ -7,4 +7,4 @@ contract test {
     }
 }
 // ----
-// TypeError 1408: (89-90): Only local variables are supported. To access storage variables, use the .slot and .offset suffixes.
+// TypeError 1408: (89-90): Only local variables are supported. To access storage variables, use the ".slot" and ".offset" suffixes.

test/libsolidity/syntaxTests/inlineAssembly/invalid/storage_assignment_in_modifier.sol

@@ -10,4 +10,4 @@ contract test {
     }
 }
 // ----
-// TypeError 1408: (80-81): Only local variables are supported. To access storage variables, use the .slot and .offset suffixes.
+// TypeError 1408: (80-81): Only local variables are supported. To access storage variables, use the ".slot" and ".offset" suffixes.

test/libsolidity/syntaxTests/inlineAssembly/invalid/storage_nonslot.sol

@@ -0,0 +1,12 @@
+contract test {
+    uint x = 1;
+    function f() public {
+        assembly {
+            let t := x.length
+            x.length := 2
+        }
+    }
+}
+// ----
+// TypeError 4656: (98-106): State variables only support ".slot" and ".offset".
+// TypeError 4656: (119-127): State variables only support ".slot" and ".offset".

test/libsolidity/syntaxTests/inlineAssembly/invalid/unbalanced_two_stack_load.sol

@@ -5,4 +5,4 @@ contract c {
     }
 }
 // ----
-// TypeError 1408: (75-76): Only local variables are supported. To access storage variables, use the .slot and .offset suffixes.
+// TypeError 1408: (75-76): Only local variables are supported. To access storage variables, use the ".slot" and ".offset" suffixes.

test/libsolidity/syntaxTests/inlineAssembly/storage_reference.sol

@@ -8,4 +8,4 @@ contract C {
     }
 }
 // ----
-// TypeError 9068: (118-119): You have to use the .slot or .offset suffix to access storage reference variables.
+// TypeError 9068: (118-119): You have to use the ".slot" or ".offset" suffix to access storage reference variables.

test/libsolidity/syntaxTests/inlineAssembly/storage_reference_old.sol

@@ -9,5 +9,5 @@ contract C {
     }
 }
 // ----
-// DeclarationError 9467: (118-124): Identifier not found. Use ``.slot`` and ``.offset`` to access storage variables.
-// DeclarationError 9467: (142-150): Identifier not found. Use ``.slot`` and ``.offset`` to access storage variables.
+// DeclarationError 9467: (118-124): Identifier not found. Use ".slot" and ".offset" to access storage variables.
+// DeclarationError 9467: (142-150): Identifier not found. Use ".slot" and ".offset" to access storage variables.

test/libsolidity/syntaxTests/inlineAssembly/storage_reference_on_function.sol

@@ -6,4 +6,4 @@ contract C {
     }
 }
 // ----
-// TypeError 7944: (84-90): The suffixes .offset and .slot can only be used on storage variables.
+// TypeError 7944: (84-90): The suffixes ".offset", ".slot" and ".length" can only be used with variables.

test/libsolidity/syntaxTests/inlineAssembly/storage_reference_on_memory.sol

@@ -9,5 +9,5 @@ contract C {
     }
 }
 // ----
-// TypeError 3622: (117-123): The suffixes .offset and .slot can only be used on storage variables.
-// TypeError 3622: (141-149): The suffixes .offset and .slot can only be used on storage variables.
+// TypeError 3622: (117-123): The suffix ".slot" is not supported by this variable or type.
+// TypeError 3622: (141-149): The suffix ".offset" is not supported by this variable or type.

test/libsolidity/syntaxTests/inlineAssembly/two_stack_slot_access.sol

@@ -0,0 +1,10 @@
+contract C {
+    function f() pure external {
+        function() external two_stack_slots;
+        assembly {
+            let x :=  two_stack_slots
+        }
+    }
+}
+// ----
+// TypeError 9857: (132-147): Only types that use one stack slot are supported.