Triage some precompilation failures, mostly related to the service isolate no longer being started.

tests/corelib/corelib.status

Index: tests/corelib/corelib.status
diff --git a/tests/corelib/corelib.status b/tests/corelib/corelib.status
index 45523370e69c5dcbc26cf3606ead6f9c225468b2..fe92613e7d61e9a96025067b114749021caf4dee 100644
--- a/tests/corelib/corelib.status
+++ b/tests/corelib/corelib.status
@@ -159,7 +159,7 @@ regexp/*: Skip
 [ ($runtime == vm || $runtime == dart_precompiled || $runtime == dart_product) ]
 regexp/global_test: Skip # Timeout. Issue 21709 and 21708
 
-[ $runtime != vm && $runtime != dart_precompiled && $compiler != dart2analyzer]
+[ $runtime != vm && $runtime != dart_precompiled && $runtime != dart_product && $compiler != dart2analyzer]
 data_resource_test: RuntimeError # Issue 23825 (not implemented yet).
 file_resource_test: Skip, OK # VM specific test, uses dart:io.
 http_resource_test: Skip, OK # VM specific test, uses dart:io.
@@ -203,6 +203,8 @@ big_integer_huge_mul_vm_test: Pass, Timeout # --no_intrinsify
 big_integer_parsed_mul_div_vm_test: Pass, Timeout # --no_intrinsify
 int_parse_radix_test: Pass, Timeout # --no_intrinsify
 
-[ $runtime == dart_product ]
+[ $compiler == precompiler || $runtime == dart_product ]
 data_resource_test: Skip # Resolve URI not supported yet in product mode.
 package_resource_test: Skip # Resolve URI not supported yet in product mode.
+file_resource_test: Skip # Resolve URI not supported yet in product mode.
+http_resource_test: Skip # Resolve URI not supported yet in product mode.