[CSSimplify] NFC: assignFixedType no longer accepts a locator

`assignFixedType` now accepts `bool` as a third parameter but
not all call sites were updated to reflect that, some of them
are still passing `ConstraintLocator *` which implicitly gets
converted to a `bool`.

Author: xedin

lib/Sema/CSSimplify.cpp

@@ -12039,8 +12039,7 @@ bool ConstraintSystem::resolveClosure(TypeVariableType *typeVar,
     if (!shouldAttemptFixes())
       return false;
 
-    assignFixedType(typeVar, PlaceholderType::get(getASTContext(), typeVar),
-                    closureLocator);
+    assignFixedType(typeVar, PlaceholderType::get(getASTContext(), typeVar));
     recordTypeVariablesAsHoles(inferredClosureType);
 
     return !recordFix(
@@ -12208,7 +12207,7 @@ bool ConstraintSystem::resolveClosure(TypeVariableType *typeVar,
   auto closureType =
       FunctionType::get(parameters, inferredClosureType->getResult(),
                         closureExtInfo);
-  assignFixedType(typeVar, closureType, closureLocator);
+  assignFixedType(typeVar, closureType);
 
   // If there is a result builder to apply, do so now.
   if (resultBuilderType) {
@@ -12236,7 +12235,7 @@ bool ConstraintSystem::resolvePackExpansion(TypeVariableType *typeVar,
       locator->castLastElementTo<LocatorPathElt::PackExpansionType>()
           .getOpenedType();
 
-  assignFixedType(typeVar, openedExpansionType, locator);
+  assignFixedType(typeVar, openedExpansionType);
   return true;
 }
 
@@ -12247,7 +12246,7 @@ bool ConstraintSystem::resolveTapBody(TypeVariableType *typeVar,
   auto *tapExpr = castToExpr<TapExpr>(tapLoc->getAnchor());
 
   // Assign a type to tap expression itself.
-  assignFixedType(typeVar, contextualType, getConstraintLocator(locator));
+  assignFixedType(typeVar, contextualType);
   // Set type to `$interpolation` variable declared in the body of tap
   // expression.
   setType(tapExpr->getVar(), contextualType);