Revert change to Platform.excutable and add Platform.resolvedExecutable

tests/standalone/standalone.status

Index: tests/standalone/standalone.status
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index a990081580fc86b9121186f1f530b3c7998b0074..4f486e7aaa329b45484bef9f35b2271aa9497b59 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -35,7 +35,7 @@ io/directory_fuzz_test: Skip
 # This is expected as MacOS by default runs with a very low number
 # of allowed open files ('ulimit -n' says something like 256).
 io/socket_many_connections_test: Skip
-io/platform_executable_test/06: RuntimeError
+io/platform_resolved_executable_test/06: RuntimeError
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
 typed_array_test: Fail # Issue 13921
@@ -211,10 +211,10 @@ io/issue_22637_test: Crash # (test()async{server=...  cannot handle async/sync*/
 io/link_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/link_uri_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/observatory_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-io/platform_executable_test/01: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/02: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/04: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/05: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/01: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/02: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/04: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/05: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
 io/platform_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/process_invalid_arguments_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/raw_datagram_socket_test: Crash # (switch (event){case...  Unhandled node