Support .kotlin_module files in kotlinx-metadata

#KT-23198

libraries/tools/kotlinp/testData/Lambda.txt

@@ -19,3 +19,10 @@ lambda {
   // signature: invoke(Lkotlin/Unit;[ILjava/util/Set;)Ljava/lang/String;
   local final fun kotlin/Unit.<no name provided>(s: kotlin/IntArray?, t: kotlin/collections/Set<kotlin/Double>): kotlin/String
 }
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+  package <root> {
+    LambdaKt
+  }
+}

libraries/tools/kotlinp/testData/MultiFileClass.txt

@@ -12,3 +12,10 @@ package {
   public final const val x: kotlin/Int /* = ... */
     public final get
 }
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+  package test {
+    test/File__MultiFileClassKt (test/File)
+  }
+}

libraries/tools/kotlinp/testData/SimplePackage.txt

@@ -16,3 +16,10 @@ package {
 
   public typealias G<T#0 /* S */> = F^<kotlin/collections/List<T#0>, kotlin/collections/Set<T#0>> /* = kotlin/collections/Map<kotlin/collections/List<T#0>, kotlin/Function1<java/lang/StringBuilder /* = kotlin/text/StringBuilder^ */, kotlin/collections/Set<T#0>?>> */
 }
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+  package <root> {
+    SimplePackageKt
+  }
+}

libraries/tools/kotlinp/testData/SyntheticClass.txt

@@ -8,3 +8,10 @@ package {
 // SyntheticClassKt$WhenMappings.class
 // ------------------------------------------
 synthetic class
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+  package <root> {
+    SyntheticClassKt
+  }
+}

libraries/tools/kotlinp/testData/VersionRequirement.txt

@@ -32,3 +32,10 @@ package {
   // requires API version 1.1.0 (level=HIDDEN, errorCode=314)
   public typealias Typealias = kotlin/String /* = kotlin/String */
 }
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+  package test {
+    test/VersionRequirementKt
+  }
+}