FIR IDE: Implement shortening and import for type qualifiers

idea/testData/shortenRefsFir/quailfiers/AlreadyImportedNestedType.dependency.kt

@@ -0,0 +1,5 @@
+package dependency
+
+class T {
+    class TT
+}

idea/testData/shortenRefsFir/quailfiers/AlreadyImportedNestedType.kt

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+// FIR_COMPARISON
+package test
+
+import dependency.T
+import dependency.T.TT
+
+fun usage() {
+    <selection>
+    dependency.T.TT
+    T.TT
+    </selection>
+}

idea/testData/shortenRefsFir/quailfiers/AlreadyImportedNestedType.kt.after

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+// FIR_COMPARISON
+package test
+
+import dependency.T
+import dependency.T.TT
+
+fun usage() {
+
+    TT
+    TT
+
+}

idea/testData/shortenRefsFir/quailfiers/NestedTypeInSameFile.kt

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+// FIR_COMPARISON
+package test
+
+class A {
+    class AA
+}
+
+fun usage() {
+    <selection>test.A.AA</selection>
+}

idea/testData/shortenRefsFir/quailfiers/NestedTypeInSameFile.kt.after

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+// FIR_COMPARISON
+package test
+
+class A {
+    class AA
+}
+
+fun usage() {
+    A.AA
+}

idea/testData/shortenRefsFir/quailfiers/NotImportedNestedType.dependency.kt

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+package dependency
+
+class T {
+    class TT
+}

idea/testData/shortenRefsFir/quailfiers/NotImportedNestedType.kt

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+// FIR_COMPARISON
+package test
+
+fun usage() {
+    <selection>dependency.T.TT</selection>
+}

idea/testData/shortenRefsFir/quailfiers/NotImportedNestedType.kt.after

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+// FIR_COMPARISON
+package test
+
+import dependency.T
+
+fun usage() {
+    T.TT
+}

idea/testData/shortenRefsFir/quailfiers/NotImportedTopLevelType.dependency.kt

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+package dependency
+
+class T

idea/testData/shortenRefsFir/quailfiers/NotImportedTopLevelType.kt

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+// FIR_COMPARISON
+package test
+
+fun usage() {
+    <selection>dependency.T</selection>
+}

idea/testData/shortenRefsFir/quailfiers/NotImportedTopLevelType.kt.after

@@ -0,0 +1,8 @@
+// FIR_COMPARISON
+package test
+
+import dependency.T
+
+fun usage() {
+    T
+}

idea/testData/shortenRefsFir/quailfiers/TopLevelTypeInSameFile.kt

@@ -0,0 +1,8 @@
+// FIR_COMPARISON
+package test
+
+class A
+
+fun usage() {
+    <selection>test.A</selection>
+}

idea/testData/shortenRefsFir/quailfiers/TopLevelTypeInSameFile.kt.after

@@ -0,0 +1,8 @@
+// FIR_COMPARISON
+package test
+
+class A
+
+fun usage() {
+    A
+}