[FIR] Fix type arguments and substitution for flexible types

compiler/fir/analysis-tests/testData/resolveWithStdlib/inference/flexibleTypeInSystem.kt

@@ -0,0 +1,17 @@
+// ISSUE: KT-37623
+// FULL_JDK
+// FILE: JavaEnum.java
+
+public enum JavaEnum {
+    A;
+}
+
+// FILE: main.kt
+
+import java.util.EnumMap
+
+val enumMap = EnumMap(
+    mapOf(
+        JavaEnum.A to "A"
+    )
+)

compiler/fir/analysis-tests/testData/resolveWithStdlib/inference/flexibleTypeInSystem.txt

@@ -0,0 +1,3 @@
+FILE: main.kt
+    public final val enumMap: R|java/util/EnumMap<ft<JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>| = R|java/util/EnumMap.EnumMap|<R|ft<JavaEnum, JavaEnum?>!|, R|ft<kotlin/String, kotlin/String?>!|>(R|kotlin/collections/mapOf|<R|ft<JavaEnum, JavaEnum?>!|, R|kotlin/String|>(Q|JavaEnum|.R|/JavaEnum.A|.R|kotlin/to|<R|JavaEnum|, R|kotlin/String|>(String(A))))
+        public get(): R|java/util/EnumMap<ft<JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>|

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/FunctionTypeInJava.txt

@@ -17,7 +17,7 @@ FILE: main.kt
         }
 
         Q|JavaClass|.R|/JavaClass.foo2|(R|<local>/y|)
-        Q|JavaClass|.R|/JavaClass.foo3|<R|kotlin/Int|>(foo3@fun <anonymous>(it: R|kotlin/Int|): R|ft<kotlin/String, kotlin/String?>!| {
+        Q|JavaClass|.R|/JavaClass.foo3|<R|kotlin/Int|>(foo3@fun <anonymous>(it: R|ft<kotlin/Int, kotlin/Int?>!|): R|ft<kotlin/String, kotlin/String?>!| {
             ^ R|<local>/it|.R|kotlin/Int.plus|(Int(4)).R|kotlin/Any.toString|()
         }
         , Int(5))

compiler/fir/analysis-tests/testData/resolveWithStdlib/javaLangComparator.txt

@@ -1,6 +1,6 @@
 FILE: javaLangComparator.kt
     public final fun test_2(list: R|kotlin/collections/List<kotlin/Int>|): R|kotlin/Unit| {
-        lval comp: R|java/util/Comparator<kotlin/Int>| = Q|java/util|.R|java/util/Comparator|<R|kotlin/Int|>(<L> = Comparator@fun <anonymous>(x: R|kotlin/Int|, y: R|kotlin/Int|): R|kotlin/Int| {
+        lval comp: R|java/util/Comparator<kotlin/Int>| = Q|java/util|.R|java/util/Comparator|<R|kotlin/Int|>(<L> = Comparator@fun <anonymous>(x: R|ft<kotlin/Int, kotlin/Int?>!|, y: R|ft<kotlin/Int, kotlin/Int?>!|): R|kotlin/Int| {
             ^ Int(1)
         }
         )

compiler/fir/analysis-tests/testData/resolveWithStdlib/kotlinComparatorAlias.txt

@@ -1,6 +1,6 @@
 FILE: kotlinComparatorAlias.kt
     public final fun test_1(): R|kotlin/Unit| {
-        lval comp: R|java/util/Comparator<kotlin/Int>| = R|java/util/Comparator|<R|kotlin/Int|>(<L> = Comparator@fun <anonymous>(x: R|kotlin/Int|, y: R|kotlin/Int|): R|kotlin/Int| {
+        lval comp: R|java/util/Comparator<kotlin/Int>| = R|java/util/Comparator|<R|kotlin/Int|>(<L> = Comparator@fun <anonymous>(x: R|ft<kotlin/Int, kotlin/Int?>!|, y: R|ft<kotlin/Int, kotlin/Int?>!|): R|kotlin/Int| {
             ^ Int(1)
         }
         )