[NFC] Remove TypeChecker::getIntType

Inline it into its only caller

Author: CodaFi

lib/Sema/CSApply.cpp

@@ -2488,7 +2488,7 @@ namespace {
       // Make the integer literals for the parameters.
       auto buildExprFromUnsigned = [&](unsigned value) {
         LiteralExpr *expr = IntegerLiteralExpr::createFromUnsigned(ctx, value);
-        cs.setType(expr, TypeChecker::getIntType(ctx));
+        cs.setType(expr, ctx.getIntDecl()->getDeclaredInterfaceType());
         return handleIntegerLiteralExpr(expr);
       };
 

lib/Sema/TypeCheckType.cpp

@@ -394,13 +394,6 @@ Type TypeChecker::getSubstringType(ASTContext &Context) {
   return Type();
 }
 
-Type TypeChecker::getIntType(ASTContext &Context) {
-  if (auto typeDecl = Context.getIntDecl())
-    return typeDecl->getDeclaredInterfaceType();
-
-  return Type();
-}
-
 Type TypeChecker::getInt8Type(ASTContext &Context) {
   if (auto typeDecl = Context.getInt8Decl())
     return typeDecl->getDeclaredInterfaceType();

lib/Sema/TypeChecker.h

@@ -348,7 +348,6 @@ Type getArraySliceType(SourceLoc loc, Type elementType);
 Type getOptionalType(SourceLoc loc, Type elementType);
 Type getStringType(ASTContext &ctx);
 Type getSubstringType(ASTContext &ctx);
-Type getIntType(ASTContext &ctx);
 Type getInt8Type(ASTContext &ctx);
 Type getUInt8Type(ASTContext &ctx);