Move importsDumper to compiler plugin

compiler/testData/cli/jvm/extraHelp.out

@@ -39,7 +39,6 @@ where advanced options include:
   -Xno-optimize              Disable optimizations
   -Xno-param-assertions      Don't generate not-null assertions on parameters of methods accessible from Java
   -Xno-receiver-assertions   Don't generate not-null assertion for extension receiver arguments of platform types
-  -Xoutput-imports=<path>    Output imports from all compiled files to the specified file in JSON format
   -Xscript-resolver-environment=<key=value[,]>
                              Script resolver environment in key-value pairs (the value could be quoted and escaped)
   -Xsingle-module            Combine modules for source files and binary dependencies into a single module

compiler/testData/importsProducer/simpleCase/a/A1.kt

@@ -1,7 +0,0 @@
-package a
-
-import c.JavaC
-
-class A1 {
-    val j: JavaC = JavaC()
-}

compiler/testData/importsProducer/simpleCase/a/A2.kt

@@ -1,5 +0,0 @@
-package a
-
-class A2 {
-    val a1: A1? = null
-}

compiler/testData/importsProducer/simpleCase/b/B1.kt

@@ -1,10 +0,0 @@
-package b
-
-import a.*
-
-class B1 {
-    companion object {
-        val a1: A1 = A1()
-        val a2: A2 = A2()
-    }
-}

compiler/testData/importsProducer/simpleCase/b/nestedB/B2.kt

@@ -1,7 +0,0 @@
-package b.nestedB
-
-import a.A1 as AliasedA1
-import a.A1
-
-fun foo(x: AliasedA1): Int = TODO()
-fun bar(x: A1): Int = TODO()

compiler/testData/importsProducer/simpleCase/c/C1.kt

@@ -1,16 +0,0 @@
-package c
-
-import a.A1
-import a.A2
-import b.B1.Companion.a2
-import b.nestedB.bar
-import b.nestedB.foo
-
-class C1 {
-    val x = foo(TODO())
-    val y = bar(TODO())
-
-    val z: A1? = null
-    val t: A2? = a2
-
-}

compiler/testData/importsProducer/simpleCase/c/JavaC.java

@@ -1,13 +0,0 @@
-package c;
-
-import a.A1;
-import b.B1;
-import b.nestedB.B2Kt;
-
-public class JavaC {
-    private void doStuff() {
-        C1 c1 = new C1();
-        B1 b1 = new B1();
-        B2Kt.bar(new A1());
-    }
-}

compiler/testData/importsProducer/simpleCase/simpleCase.dump

@@ -1 +0,0 @@
-{"$TESTDATA_DIR$\/a\/A1.kt":["import c.JavaC"],"$TESTDATA_DIR$\/a\/A2.kt":[],"$TESTDATA_DIR$\/b\/B1.kt":["import a.*"],"$TESTDATA_DIR$\/b\/nestedB\/B2.kt":["import a.A1 as AliasedA1","import a.A1"],"$TESTDATA_DIR$\/c\/C1.kt":["import a.A1","import a.A2","import b.B1.Companion.a2","import b.nestedB.bar","import b.nestedB.foo"]}

compiler/testData/importsProducer/simpleCase/simpleCase.out

@@ -1 +0,0 @@
-OK