Update natspec warning tests

Author: matheusaaguiar

test/libsolidity/syntaxTests/inlineAssembly/memory_safe_dialect_string_and_comment.sol

@@ -5,3 +5,4 @@ function f() pure {
 }
 // ----
 // Warning 8544: (63-104): Inline assembly marked as memory safe using both a NatSpec tag and an assembly flag. If you are not concerned with backwards compatibility, only use the assembly flag, otherwise only use the NatSpec tag.
+// Warning 2424: (63-104): Natspec memory safe annotation for inline assembly is deprecated and scheduled for removal in the next breaking version (0.9).

test/libsolidity/syntaxTests/inlineAssembly/natspec_multi.sol

@@ -15,9 +15,11 @@ function f() pure {
 // Warning 6269: (189-200): Unexpected NatSpec tag "after" with value "bogus-value" in inline assembly.
 // Warning 6269: (189-200): Unexpected NatSpec tag "before" with value "bogus-value" in inline assembly.
 // Warning 8787: (189-200): Unexpected value for @solidity tag in inline assembly: a
+// Warning 2424: (189-200): Natspec memory safe annotation for inline assembly is deprecated and scheduled for removal in the next breaking version (0.9).
 // Warning 8787: (189-200): Unexpected value for @solidity tag in inline assembly: b
 // Warning 8787: (189-200): Unexpected value for @solidity tag in inline assembly: c
 // Warning 8787: (189-200): Unexpected value for @solidity tag in inline assembly: d
+// Warning 2424: (289-300): Natspec memory safe annotation for inline assembly is deprecated and scheduled for removal in the next breaking version (0.9).
 // Warning 8787: (289-300): Unexpected value for @solidity tag in inline assembly: a
 // Warning 4377: (289-300): Value for @solidity tag in inline assembly specified multiple times: a
 // Warning 4377: (289-300): Value for @solidity tag in inline assembly specified multiple times: memory-safe-assembly

test/libsolidity/syntaxTests/inlineAssembly/natspec_multi_swallowed.sol

@@ -14,6 +14,7 @@ function f() pure {
 // ----
 // Warning 6269: (177-188): Unexpected NatSpec tag "after" with value "bogus-value" in inline assembly.
 // Warning 6269: (177-188): Unexpected NatSpec tag "before" with value "@solidity a   memory-safe-assembly b    c           d" in inline assembly.
+// Warning 2424: (277-288): Natspec memory safe annotation for inline assembly is deprecated and scheduled for removal in the next breaking version (0.9).
 // Warning 8787: (277-288): Unexpected value for @solidity tag in inline assembly: a
 // Warning 4377: (277-288): Value for @solidity tag in inline assembly specified multiple times: a
 // Warning 4377: (277-288): Value for @solidity tag in inline assembly specified multiple times: memory-safe-assembly