FIR IDE: add missing binary extensions

This also reveals and error in find usages for fir: it does not work for library source files
So, corresponding tests are muted

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryClassUsages.0.kt

@@ -1,7 +1,6 @@
 // PSI_ELEMENT: com.intellij.psi.PsiClass
 // OPTIONS: usages
 // FIND_BY_REF
-// FIR_COMPARISON
 
 package usages
 

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryClassUsages.results.txt

@@ -1,2 +1,2 @@
-Local variable declaration 11 val foo: Foo
-Usage in import 8 import library.Foo
+Local variable declaration 10 val foo: Foo
+Usage in import 7 import library.Foo

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryFieldUsages.0.kt

@@ -1,7 +1,6 @@
 // PSI_ELEMENT: com.intellij.psi.PsiField
 // OPTIONS: usages
 // FIND_BY_REF
-// FIR_COMPARISON
 
 package usages
 

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryFieldUsages.results.txt

@@ -1 +1 @@
-Value write 11 Foo(1).x = 1
+Value write 10 Foo(1).x = 1

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryStaticFieldUsages.0.kt

@@ -1,7 +1,6 @@
 // PSI_ELEMENT: com.intellij.psi.PsiField
 // OPTIONS: usages
 // FIND_BY_REF
-// FIR_COMPARISON
 
 package usages
 

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryStaticFieldUsages.results.txt

@@ -1 +1 @@
-Value write 11 Foo.X = 1
+Value write 10 Foo.X = 1

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryStaticMethodUsages.0.kt

@@ -1,7 +1,6 @@
 // PSI_ELEMENT: com.intellij.psi.PsiMethod
 // OPTIONS: usages
 // FIND_BY_REF
-// FIR_COMPARISON
 
 package usages
 

idea/testData/findUsages/libraryUsages/javaLibrary/LibraryStaticMethodUsages.results.txt

@@ -1 +1 @@
-Function call 11 Foo.baz(1)
+Function call 10 Foo.baz(1)