[turbofan] Some more cleanup on the intrinsics.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index ef0b88f3dcf558c4446368080cd41dea13697f86..6f120f25f9178ad341c5cc8073dd171d6f2ea231 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -1563,8 +1563,10 @@ Type* Typer::Visitor::TypeJSCallRuntime(Node* node) {
       return Type::Number();
     case Runtime::kInlineMathClz32:
       return Type::Range(0, 32, zone());
-    case Runtime::kInlineStringGetLength:
-      return Type::Range(0, String::kMaxLength, zone());
+    case Runtime::kInlineRegExpConstructResult:
+      return Type::OtherObject();
+    case Runtime::kInlineSubString:
+      return Type::String();
     case Runtime::kInlineToInteger:
       return TypeUnaryOp(node, ToInteger);
     case Runtime::kInlineToLength: