Populate java_api_libray's IDEInfo

Adding the srcjar to module_bp_java_deps.json is useful for IDE
autocompletion of rdeps.

Bug: 353806911
Test: cat out/soong/module_bp_java_deps.json | jq '."core.current.stubs.from-text"'
{
  "dependencies": [
    "stub-annotations"
  ],
  "srcjars": [
    "out/soong/.intermediates/build/soong/java/core-libraries/core.current.stubs.from-text/android_common/metalava/core.current.stubs.from-text-stubs.srcjar"
  ],
  "path": [
    "build/soong/java/core-libraries"
  ],
  "libs": [
    "stub-annotations"
  ]
}

Change-Id: Ie4ad985a7da40b478453735dfdb10d0ac63ab8f4