AIDEGen: Remove the duplicate *.srcjar from srcs

AIDEGen collects the complied sources which are generated from build
system, the sources includes not only java/kt files but also srcjar
files. Since the srcjar files are record in srcjars parameter in json
file, we should keep only java or kt files in the srcs parameter.

The size diff of module_bp_java_deps.json:
Without this patch: 15,298,369 Bytes
With this patch: 15,044,804 Bytes

The build time diff:
Without this patch: 2m31.345
With this patch: 2m32.662

Bug: 141528361
Test: 1. m clean -j
      2. aidegen tradefed
      3. Open out/soong/module_bp_java_deps.json
      4. Find the module CtsSyncManagerCommon and check the
         sync_manager_cts.srcjar files doesn't exist in srcs but exists
         in srcjars section.

Change-Id: I43fc5c05b657473054e632cae4795220907dc711
diff --git a/java/java.go b/java/java.go
index b0fc9db..9c7f845 100644
--- a/java/java.go
+++ b/java/java.go
@@ -350,8 +350,8 @@
 	// list of SDK lib names that this java moudule is exporting
 	exportedSdkLibs []string
 
-	// list of source files, collected from compiledJavaSrcs and compiledSrcJars
-	// filter out Exclude_srcs, will be used by android.IDEInfo struct
+	// list of source files, collected from srcFiles with uniqie java and all kt files,
+	// will be used by android.IDEInfo struct
 	expandIDEInfoCompiledSrcs []string
 
 	// expanded Jarjar_rules
@@ -1039,9 +1039,6 @@
 		srcJars = append(srcJars, aaptSrcJar)
 	}
 
-	// Collect source files and filter out Exclude_srcs that IDEInfo struct will use
-	j.expandIDEInfoCompiledSrcs = append(j.expandIDEInfoCompiledSrcs, srcFiles.Strings()...)
-
 	if j.properties.Jarjar_rules != nil {
 		j.expandJarjarRules = android.PathForModuleSrc(ctx, *j.properties.Jarjar_rules)
 	}
@@ -1058,6 +1055,9 @@
 		}
 	}
 
+	// Collect .java files for AIDEGen
+	j.expandIDEInfoCompiledSrcs = append(j.expandIDEInfoCompiledSrcs, uniqueSrcFiles.Strings()...)
+
 	var kotlinJars android.Paths
 
 	if srcFiles.HasExt(".kt") {
@@ -1082,6 +1082,9 @@
 		kotlinSrcFiles = append(kotlinSrcFiles, uniqueSrcFiles...)
 		kotlinSrcFiles = append(kotlinSrcFiles, srcFiles.FilterByExt(".kt")...)
 
+		// Collect .kt files for AIDEGen
+		j.expandIDEInfoCompiledSrcs = append(j.expandIDEInfoCompiledSrcs, srcFiles.FilterByExt(".kt").Strings()...)
+
 		flags.classpath = append(flags.classpath, deps.kotlinStdlib...)
 		flags.classpath = append(flags.classpath, deps.kotlinAnnotations...)