FIR Java: add default constructors

compiler/testData/loadJava/compiledJava/static/DeeplyInnerClass.fir.txt

@@ -1,2 +1,4 @@
 public open class DeeplyInnerClass : R|kotlin/Any| {
+    public constructor(): R|test/DeeplyInnerClass|
+
 }

compiler/testData/loadJava/compiledJava/static/DeeplyNestedStatic.fir.txt

@@ -1,2 +1,4 @@
 public open class DeeplyNestedStatic : R|kotlin/Any| {
+    public constructor(): R|test/DeeplyNestedStatic|
+
 }

compiler/testData/loadJava/compiledJava/static/InnerClass.fir.txt

@@ -1,2 +1,4 @@
 public open class InnerClass : R|kotlin/Any| {
+    public constructor(): R|test/InnerClass|
+
 }

compiler/testData/loadJava/compiledJava/static/Simple.fir.txt

@@ -3,4 +3,6 @@ public open class Simple : R|kotlin/Any| {
 
     public open operator fun foo(): R|kotlin/Unit|
 
+    public constructor(): R|test/Simple|
+
 }

compiler/testData/loadJava/compiledJava/static/StaticFinal.fir.txt

@@ -11,4 +11,6 @@ public open class StaticFinal : R|kotlin/Any| {
 
     private final static field privateNull: R|ft<kotlin/String, kotlin/String?>|!
 
+    public constructor(): R|test/StaticFinal|
+
 }