[csa][cleanup] Remove Sloppy-ness for more classes

Remove for:
 * Number
 * BoolT
 * Context
 * HeapObject

Bug: v8:6949, v8:11074
Change-Id: Id9f96314c93c75094a2440e1903b56e0649111b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2523312Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71042}

test/cctest/compiler/test-code-generator.cc

@@ -123,10 +123,11 @@ Handle<Code> BuildSetupFunction(Isolate* isolate,
       case MachineRepresentation::kTagged:
         break;
       case MachineRepresentation::kFloat32:
-        element = __ TruncateFloat64ToFloat32(__ LoadHeapNumberValue(element));
+        element = __ TruncateFloat64ToFloat32(
+            __ LoadHeapNumberValue(__ CAST(element)));
         break;
       case MachineRepresentation::kFloat64:
-        element = __ LoadHeapNumberValue(element);
+        element = __ LoadHeapNumberValue(__ CAST(element));
         break;
       case MachineRepresentation::kSimd128: {
         Node* vector = tester.raw_assembler_for_testing()->AddNode(