Fix multiple object storage. (#131)

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt

@@ -618,6 +618,8 @@ internal class CodeGeneratorVisitor(val context: Context) : IrElementVisitorVoid
         if (objectPtr == null) {
             objectPtr = LLVMAddGlobal(context.llvmModule, codegen.getLLVMType(value.type), objName)
             LLVMSetInitializer(objectPtr, codegen.kNullObjHeaderPtr)
+            // Backing storage for this global is common between all modules.
+            LLVMSetLinkage(objectPtr, LLVMLinkage.LLVMCommonLinkage)
         }
 
         val bbCurrent = codegen.currentBlock

backend.native/tests/build.gradle

@@ -329,8 +329,6 @@ task tostring2(type: RunKonanTest) {
 }
 
 task tostring3(type: RunKonanTest) {
-    // Enable, once double object init fixed.
-    disabled = true
     goldValue = "-128\n127\n-32768\n32767\n" +
             "-2147483648\n2147483647\n-9223372036854775808\n9223372036854775807\n" +
             "1.17549E-38\n3.40282E+38\n-INF\nINF\n" +