Replace all uses of assert() with TINT_ICE macros

Use TINT_ICE() where we have diagnostics, TINT_ASSERT() where we do not.

Change-Id: Ic6e842a7afdd957654c3461e5d03ecec7332e6f9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/46444
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>

src/resolver/resolver.cc

@@ -1329,7 +1329,10 @@ type::Type* Resolver::TypeOf(ast::Expression* expr) {
 }
 
 void Resolver::SetType(ast::Expression* expr, type::Type* type) {
-  assert(expr_info_.count(expr) == 0);
+  if (expr_info_.count(expr)) {
+    TINT_ICE(builder_->Diagnostics())
+        << "SetType() called twice for the same expression";
+  }
   expr_info_.emplace(expr, ExpressionInfo{type, current_statement_});
 }