[Test] Add handler for comparing pretty kt ir dumps

compiler/testData/ir/irText/expressions/signedToUnsignedConversions.kt.txt

@@ -0,0 +1,68 @@
+// FILE: signedToUnsignedConversions_annotation.kt
+package kotlin.internal
+
+annotation class ImplicitIntegerCoercion : Annotation {
+  constructor() /* primary */
+
+}
+
+// FILE: signedToUnsignedConversions_test.kt
+
+@ImplicitIntegerCoercion
+const val IMPLICIT_INT: Int
+  field = 255
+  get
+
+@ImplicitIntegerCoercion
+const val EXPLICIT_INT: Int
+  field = 255
+  get
+
+@ImplicitIntegerCoercion
+const val LONG_CONST: Long
+  field = 255L
+  get
+
+@ImplicitIntegerCoercion
+val NON_CONST: Int
+  field = 255
+  get
+
+@ImplicitIntegerCoercion
+const val BIGGER_THAN_UBYTE: Int
+  field = 256
+  get
+
+@ImplicitIntegerCoercion
+const val UINT_CONST: UInt
+  field = 42
+  get
+
+fun takeUByte(@ImplicitIntegerCoercion u: UByte) {
+}
+
+fun takeUShort(@ImplicitIntegerCoercion u: UShort) {
+}
+
+fun takeUInt(@ImplicitIntegerCoercion u: UInt) {
+}
+
+fun takeULong(@ImplicitIntegerCoercion u: ULong) {
+}
+
+fun takeUBytes(@ImplicitIntegerCoercion vararg u: UByte) {
+}
+
+fun takeLong(@ImplicitIntegerCoercion l: Long) {
+}
+
+fun test() {
+  takeUByte(u = <get-IMPLICIT_INT>().toUByte())
+  takeUByte(u = <get-EXPLICIT_INT>().toUByte())
+  takeUShort(u = <get-IMPLICIT_INT>().toUShort())
+  takeUShort(u = <get-BIGGER_THAN_UBYTE>().toUShort())
+  takeUInt(u = <get-IMPLICIT_INT>().toUInt())
+  takeULong(u = <get-IMPLICIT_INT>().toULong())
+  takeUBytes(u = [<get-IMPLICIT_INT>().toUByte(), <get-EXPLICIT_INT>().toUByte(), 42B])
+}
+