Insert imports in codeFragment correctly. Add test

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective.kt

@@ -0,0 +1,5 @@
+package foo
+
+fun main(args: Array<String>) {
+    <caret>println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective.kt.after

@@ -0,0 +1,6 @@
+package foo
+
+fun main(args: Array<String>) {
+    1 + 1
+println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective.kt.fragment

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

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective2.kt

@@ -0,0 +1,5 @@
+package foo
+
+fun main(args: Array<String>) {
+    <caret>println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective2.kt.after

@@ -0,0 +1,8 @@
+package foo
+import foo
+
+
+fun main(args: Array<String>) {
+    1 + 1
+println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyImportDirective2.kt.fragment

@@ -0,0 +1,3 @@
+import foo
+
+1 + 1

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective.kt

@@ -0,0 +1,3 @@
+fun main(args: Array<String>) {
+    <caret>println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective.kt.after

@@ -0,0 +1,4 @@
+fun main(args: Array<String>) {
+    1 + 1
+println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective.kt.fragment

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

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective2.kt

@@ -0,0 +1,3 @@
+fun main(args: Array<String>) {
+    <caret>println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective2.kt.after

@@ -0,0 +1,6 @@
+
+import foo.*
+fun main(args: Array<String>) {
+    1 + 1
+println()
+}

idea/testData/debugger/insertBeforeExtractFunction/emptyPackageDirective2.kt.fragment

@@ -0,0 +1,3 @@
+import foo.*
+
+1 + 1

idea/testData/debugger/insertBeforeExtractFunction/manyImports.kt

@@ -0,0 +1,8 @@
+package foo
+
+import a
+import b
+
+fun main(args: Array<String>) {
+    <caret>println()
+}

idea/testData/debugger/insertBeforeExtractFunction/manyImports.kt.after

@@ -0,0 +1,12 @@
+package foo
+
+import a
+import b
+import a
+import b
+
+
+fun main(args: Array<String>) {
+    1 + 1
+println()
+}

idea/testData/debugger/insertBeforeExtractFunction/manyImports.kt.fragment

@@ -0,0 +1,4 @@
+import a
+import b
+
+1 + 1