Go, Rust: Fix usage of incorrect stream in repeat: eos loops when _io is redefined

Author: Mingun

shared/src/main/scala/io/kaitai/struct/languages/GoCompiler.scala

@@ -305,7 +305,7 @@ class GoCompiler(typeProvider: ClassTypeProvider, config: RuntimeConfig)
     out.inc
 
     val eofVar = translator.allocateLocalVar()
-    out.puts(s"${translator.localVarName(eofVar)}, err := this._io.EOF()")
+    out.puts(s"${translator.localVarName(eofVar)}, err := $io.EOF()")
     translator.outAddErrCheck()
     out.puts(s"if ${translator.localVarName(eofVar)} {")
     out.inc

shared/src/main/scala/io/kaitai/struct/languages/RustCompiler.scala

@@ -283,7 +283,7 @@ class RustCompiler(typeProvider: ClassTypeProvider, config: RuntimeConfig)
     out.puts("{")
     out.inc
     out.puts(s"let mut _i = 0;")
-    out.puts(s"while !_io.is_eof() {")
+    out.puts(s"while !$io.is_eof() {")
     out.inc
   }