[NFC][clang]Inclusive language: remove remaining uses of sanity

Missed some uses of sanity check in previous commits.

clang/lib/AST/ExprConstant.cpp

@@ -7483,7 +7483,7 @@ public:
     const Expr *Source = E->getSourceExpr();
     if (!Source)
       return Error(E);
-    if (Source == E) { // sanity checking.
+    if (Source == E) {
       assert(0 && "OpaqueValueExpr recursively refers to itself");
       return Error(E);
     }

clang/lib/StaticAnalyzer/Core/CoreEngine.cpp

@@ -686,8 +686,8 @@ SwitchNodeBuilder::generateDefaultCaseNode(ProgramStateRef St,
   assert(Src->succ_rbegin() != Src->succ_rend());
   CFGBlock *DefaultBlock = *Src->succ_rbegin();
 
-  // Sanity check for default blocks that are unreachable and not caught
-  // by earlier stages.
+  // Basic correctness check for default blocks that are unreachable and not
+  // caught by earlier stages.
   if (!DefaultBlock)
     return nullptr;
 

clang/utils/TableGen/ASTTableGen.cpp

@@ -107,7 +107,7 @@ static void visitASTNodeRecursive(ASTNode node, ASTNode base,
 static void visitHierarchy(RecordKeeper &records,
                            StringRef nodeClassName,
                            ASTNodeHierarchyVisitor<ASTNode> visit) {
-  // Check for the node class, just as a sanity check.
+  // Check for the node class, just as a basic correctness check.
   if (!records.getClass(nodeClassName)) {
     PrintFatalError(Twine("cannot find definition for node class ")
                       + nodeClassName);

clang/utils/check_cfc/check_cfc.py

@@ -339,7 +339,7 @@ if __name__ == '__main__':
     # Prevent infinite loop if called with absolute path.
     arguments_a[0] = os.path.basename(arguments_a[0])
 
-    # Sanity check
+    # Basic correctness check
     enabled_checks = [check_name
                       for check_name in checks
                       if config.getboolean('Checks', check_name)]