Fix typo in type.

lib/compiler/implementation/ssa/builder.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 914 matching lines @@
         f: (ClassElement enclosingClass, Element member) {
       HInstruction value = fieldValues[member];
       if (value === null) {
         // The field has no value in the initializer list. Initialize it
         // with the declaration-site constant (if any).
         Constant fieldValue = compiler.constantHandler.compileVariable(member);
         value = graph.addConstant(fieldValue);
       }
       constructorArguments.add(value);
     });
-  
+
     HForeignNew newObject = new HForeignNew(classElement, constructorArguments);
     add(newObject);
     // Generate calls to the constructor bodies.
     for (int index = constructors.length - 1; index >= 0; index--) {
       FunctionElement constructor = constructors[index];
       // TODO(floitsch): find better way to detect that constructor body is
       // empty.
       if (constructor is SynthesizedConstructorElement) continue;
       ConstructorBodyElement body = getConstructorBody(classElement,
                                                        constructor);
@@ skipping 353 matching lines @@
                                                   conditionBlock,
                                                   target,
                                                   isContinue: true);
       }
     }
     open(conditionBlock);
 
     visit(node.condition);
     assert(!isAborted());
     HInstruction conditionInstruction = popBoolified();
-    HBasicBLock conditionEndBlock =
+    HBasicBlock conditionEndBlock =
         close(new HLoopBranch(conditionInstruction, HLoopBranch.DO_WHILE_LOOP));
 
     conditionEndBlock.addSuccessor(loopEntryBlock);  // The back-edge.
     loopEntryBlock.postProcessLoopHeader();
 
     endLoop(loopEntryBlock, conditionEndBlock, jumpHandler, localsHandler);
     jumpHandler.close();
 
     loopInfo.body = new SubGraph(bodyEntryBlock, bodyExitBlock);
     loopInfo.condition = new SubExpression(conditionBlock, conditionEndBlock,
@@ skipping 1677 matching lines @@
                                         false,
                                         <HInstruction>[target, input]));
     return builder.pop();
   }
 
   HInstruction result() {
     flushLiterals();
     return prefix;
   }
 }