…o remote cache

…47)

* only filters labels according to parent packages for LanguageClass.C
This is to keep supporting CPP need while also supporting aggregate targets
More info:
https://bazelbuild.slack.com/archives/CM8JQCANN/p1566481600003600
Filter was deliberately added to fix an issue with C++ headers.
The original bug was that opening the BUILD file for foo/bar.h caused it to open baz/qux/BUILD because there’s a cc_library target in baz/qux that includes foo/bar.h in its headers. The source-to-target look up queries the index for the target during the last sync which compiled the source file. In this case, it was the cc_library target in baz/qux.
So the fix was to ensure that the BUILD file is always for the parent package (foo/bar)

Don't use ijars as they break source navigation

- ignore java_import /_ijar/ as its original location is not know
- replace -ijar with sibling full jar
- replace -hjar with sibling full jar

https://youtrack.jetbrains.com/issue/SCL-16975/Navigation-to-attached-Scala-sources-for-interface-jar-does-not-work

Add support for scala source attachment

Add source root detection for Java and Scala source jars. Detection is required when dire4ctory structure in source jar has deeper structure than source packages.

Source attachement changes for 2022.3 support

`idea.plugin.protoeditor` needs to be aware of source roots of proto
libraries

Add proto files to target sources

Via running bloop and BSP

Fast test supports ITs
Location substitution supports runpath(s) in addition to location(s)
Still includes a hack of the env variable of BUILD_TOOL which we need to see how to remove but at least a smaller hack than before

Full Compile on proto file changes

don't update sources after proto change already exists