Fix C4018 signed/unsigned comparison warnings

tslang/lib/TypeScript/DiagnosticHelper.cpp

@@ -108,7 +108,7 @@ void printLocation(llvm::raw_ostream &os, mlir::Location location, llvm::StringR
 
 void printDiagnostics(SourceMgrDiagnosticHandlerEx &sourceMgrHandler, mlir::SmallVector<std::unique_ptr<mlir::Diagnostic>> &postponedMessages, bool disableWarnings)
 {
-    for (auto msgIndex = 0; msgIndex < postponedMessages.size(); msgIndex++)
+    for (int msgIndex = 0; msgIndex < static_cast<int>(postponedMessages.size()); msgIndex++)
     {
         auto &diag = postponedMessages[msgIndex];
 

tslang/lib/TypeScript/MLIRGenGenerics.cpp

@@ -426,7 +426,7 @@ namespace mlirgen
             return;
         }
 
-        for (auto paramIndex = 0; paramIndex < tempfuncType.size(); paramIndex++)
+        for (size_t paramIndex = 0; paramIndex < tempfuncType.size(); paramIndex++)
         {
             auto currentTemplateType = tempfuncType[paramIndex];
             auto currentType = funcType[paramIndex];

tslang/lib/TypeScript/MLIRGenImpl.h

@@ -13185,7 +13185,7 @@ class MLIRGenImpl
                 NodeFactory nf(NodeFactoryFlags::None);
 
                 NodeArray<Expression> argumentsArray;
-                for (auto index = 1; index < funcType.getNumInputs(); index++)
+                for (unsigned index = 1; index < funcType.getNumInputs(); index++)
                 {
                     std::string paramName("p");
                     paramName += std::to_string(index - 1);

tslang/lib/TypeScript/MLIRGenVariables.cpp

@@ -416,7 +416,7 @@ namespace mlirgen
                     }
 
                     // past the end: the default of the element type, null for a reference (see below)
-                    if (index >= constArrayType.getSize())
+                    if (static_cast<unsigned>(index) >= constArrayType.getSize())
                     {
                         return V(builder.create<mlir_ts::DefaultOp>(location, constArrayType.getElementType()));
                     }