Incremental compilation for TypeScript (#6428)

This commit adds incremental compilation capabilities to internal TS compiler.

Instead of using "ts.createProgram()" API for compilation step (during deno 
startup), "ts.createIncrementalProgram()" API is used instead.

Thanks to TS' ".tsbuildinfo" file that already stores all necessary metadata
for compilation I was able to remove our own invention that is ".graph" file. 
".tsbuildinfo" file is stored alongside compiled source and is used to 
cache-bust outdated dependencies, facilitated by the "version" field. 
The value for "version" field is computed in Rust during loading of module 
graph and is basically a hash of the file contents.

Please keep in mind that incremental compilation is only used for initial 
compilation (or dynamic imports compilation) - bundling and runtime compiler 
APIs haven't been changed at all.

Due to problems with source map I changed compilation settings to inline 
source map (inlineSourceMap instead of sourceMap).

5 files changed, 15 insertions, 5 deletions

diff --git a/cli/tests/054_info_local_imports.out b/cli/tests/054_info_local_imports.out
index 9794e4ede..32cfd8525 100644
--- a/cli/tests/054_info_local_imports.out
+++ b/cli/tests/054_info_local_imports.out
@@ -1,7 +1,6 @@
 local: [WILDCARD]005_more_imports.ts
 type: TypeScript
 compiled: [WILDCARD]005_more_imports.ts.js
-map: [WILDCARD]005_more_imports.ts.js.map
 deps:
 file://[WILDCARD]/005_more_imports.ts
   └─┬ file://[WILDCARD]/subdir/mod1.ts
diff --git a/cli/tests/integration_tests.rs b/cli/tests/integration_tests.rs
index d5b4016c1..890249072 100644
--- a/cli/tests/integration_tests.rs
+++ b/cli/tests/integration_tests.rs
@@ -2049,7 +2049,7 @@ itest!(single_compile_with_reload {
 });
 
 itest!(performance_stats {
-  args: "run --reload --log-level debug 002_hello.ts",
+  args: "bundle --log-level debug 002_hello.ts",
   output: "performance_stats.out",
 });
 
diff --git a/cli/tests/single_compile_with_reload.ts b/cli/tests/single_compile_with_reload.ts
index 3dd728366..a4d6d0341 100644
--- a/cli/tests/single_compile_with_reload.ts
+++ b/cli/tests/single_compile_with_reload.ts
@@ -1,4 +1,4 @@
-await import("./005_more_imports.ts");
+await import("./single_compile_with_reload_dyn.ts");
 console.log("1");
-await import("./005_more_imports.ts");
+await import("./single_compile_with_reload_dyn.ts");
 console.log("2");
diff --git a/cli/tests/single_compile_with_reload.ts.out b/cli/tests/single_compile_with_reload.ts.out
index 2cdd71673..c3e87e7d3 100644
--- a/cli/tests/single_compile_with_reload.ts.out
+++ b/cli/tests/single_compile_with_reload.ts.out
@@ -1,5 +1,5 @@
 Compile [WILDCARD]single_compile_with_reload.ts
-Compile [WILDCARD]005_more_imports.ts
+Compile [WILDCARD]single_compile_with_reload_dyn.ts
 Hello
 1
 2
diff --git a/cli/tests/single_compile_with_reload_dyn.ts b/cli/tests/single_compile_with_reload_dyn.ts
new file mode 100644
index 000000000..52dd1df7b
--- /dev/null
+++ b/cli/tests/single_compile_with_reload_dyn.ts
@@ -0,0 +1,11 @@
+import { returnsHi, returnsFoo2, printHello3 } from "./subdir/mod1.ts";
+
+printHello3();
+
+if (returnsHi() !== "Hi") {
+  throw Error("Unexpected");
+}
+
+if (returnsFoo2() !== "Foo") {
+  throw Error("Unexpected");
+}