Native ES modules (#1460)

* Native ES modules

This is a major refactor of internal compiler.

Before: JS and TS both were sent through the typescript compiler where
their imports were parsed and handled. Both compiled to AMD JS and
finally sent to V8

Now: JS is sent directly into V8. TS is sent through the typescript
compiler, but tsc generates ES modules now instead of AMD. This
generated JS is then dumped into V8.

This should much faster for pure JS code. It may improve TS compilation
speed.

In the future this allows us to separate TS out of the runtime heap and
into its own dedicated snapshot. This will result in a smaller runtime
heap, and thus should be faster.

Some tests were unfortunately disabled to ease landing this patch:
1. compiler_tests.ts which I intend to bring back in later commits.
2. Some text_encoding_test.ts tests which made the file invalid utf8.
   See PR for a discussion.
Also worth noting that this is necessary to support WASM

9 files changed, 9 insertions, 28 deletions

diff --git a/tests/013_dynamic_import.test b/tests/013_dynamic_import.disabled
index 8fe463b20..8fe463b20 100644
--- a/tests/013_dynamic_import.test
+++ b/tests/013_dynamic_import.disabled
diff --git a/tests/014_duplicate_import.test b/tests/014_duplicate_import.disabled
index 57d5b6e8b..57d5b6e8b 100644
--- a/tests/014_duplicate_import.test
+++ b/tests/014_duplicate_import.disabled
diff --git a/tests/020_json_modules.ts b/tests/020_json_modules.ts
index 89963751c..71c0eb8db 100644
--- a/tests/020_json_modules.ts
+++ b/tests/020_json_modules.ts
@@ -1,3 +1,3 @@
 import * as config from "./subdir/config.json";
-
-console.log(JSON.stringify(config));
+// TODO Shouldn't need 'default'
+console.log(JSON.stringify(config["default"]));
diff --git a/tests/async_error.ts.out b/tests/async_error.ts.out
index 1e7e901f6..8054551e4 100644
--- a/tests/async_error.ts.out
+++ b/tests/async_error.ts.out
@@ -3,8 +3,4 @@ before error
 world
 Error: error
     at foo ([WILDCARD]tests/async_error.ts:4:9)
-    at eval ([WILDCARD]tests/async_error.ts:7:1)
-    at _gatherDependencies ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at run ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at denoMain ([WILDCARD]/js/main.ts:[WILDCARD])
-    at <anonymous>:1:1
+    at [WILDCARD]tests/async_error.ts:7:1
diff --git a/tests/error_001.ts.out b/tests/error_001.ts.out
index 1ab615fc0..7a8491225 100644
--- a/tests/error_001.ts.out
+++ b/tests/error_001.ts.out
@@ -1,8 +1,4 @@
 [WILDCARD]Error: bad
     at foo (file://[WILDCARD]tests/error_001.ts:2:9)
     at bar (file://[WILDCARD]tests/error_001.ts:6:3)
-    at eval (file://[WILDCARD]tests/error_001.ts:9:1)
-    at _gatherDependencies ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at run ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at denoMain ([WILDCARD]/js/main.ts:[WILDCARD])
-    at <anonymous>:1:1
+    at file://[WILDCARD]tests/error_001.ts:9:1
diff --git a/tests/error_002.ts.out b/tests/error_002.ts.out
index 5a9c21e89..0f3b08303 100644
--- a/tests/error_002.ts.out
+++ b/tests/error_002.ts.out
@@ -1,8 +1,4 @@
 [WILDCARD]Error: exception from mod1
     at throwsError (file://[WILDCARD]/tests/subdir/mod1.ts:16:9)
     at foo (file://[WILDCARD]/tests/error_002.ts:4:3)
-    at eval (file://[WILDCARD]/tests/error_002.ts:7:1)
-    at _drainRunQueue ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at run ([WILDCARD]/js/compiler.ts:[WILDCARD])
-    at denoMain ([WILDCARD]/js/main.ts:[WILDCARD])
-    at <anonymous>:1:1
+    at file://[WILDCARD]/tests/error_002.ts:7:1
diff --git a/tests/error_008_checkjs.js.out b/tests/error_008_checkjs.js.out
index 793c2f68c..c40012712 100644
--- a/tests/error_008_checkjs.js.out
+++ b/tests/error_008_checkjs.js.out
@@ -1,10 +1,2 @@
-[WILDCARD]/tests/error_008_checkjs.jsILDCARD] - error TS2552: Cannot find name 'consol'. Did you mean 'console'?
-
-ILDCARD] consol.log("hello world!");
-[WILDCARD]~~~~~~
-
-  $asset$/lib.deno_runtime.d.tsILDCARD]
-[WILDCARD]declare const console: consoleTypes.Console;
-[WILDCARD]~~~~~~~
-[WILDCARD]'console' is declared here.
-
+ReferenceError: consol is not defined
+    at [WILDCARD]tests/error_008_checkjs.js:2:1
diff --git a/tests/error_008_checkjs.test b/tests/error_008_checkjs.test
index eebd64aaf..0e43421e4 100644
--- a/tests/error_008_checkjs.test
+++ b/tests/error_008_checkjs.test
@@ -1,3 +1,4 @@
 args: tests/error_008_checkjs.js --reload
+check_stderr: true
 exit_code: 1
 output: tests/error_008_checkjs.js.out
diff --git a/tests/subdir/auto_print_hello.ts b/tests/subdir/auto_print_hello.ts
index a00040281..5efa72e03 100644
--- a/tests/subdir/auto_print_hello.ts
+++ b/tests/subdir/auto_print_hello.ts
@@ -1,2 +1,2 @@
 console.log("hello!");
-export = {};
+export default {};