| Index: src/runtime.cc
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| diff --git a/src/runtime.cc b/src/runtime.cc
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| index f0c1d95f88275bc3b5a6af003d149d27ffa51c12..138924ff1278b4d7cfd56e8535e68c1c295b0481 100644
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| --- a/src/runtime.cc
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| +++ b/src/runtime.cc
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| @@ -15415,9 +15415,9 @@ RUNTIME_FUNCTION(RuntimeReference_StringCharAt) {
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|  RUNTIME_FUNCTION(RuntimeReference_OneByteSeqStringSetChar) {
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|    SealHandleScope shs(isolate);
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|    DCHECK(args.length() == 3);
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| -  CONVERT_ARG_CHECKED(SeqOneByteString, string, 0);
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| -  CONVERT_INT32_ARG_CHECKED(index, 1);
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| -  CONVERT_INT32_ARG_CHECKED(value, 2);
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| +  CONVERT_INT32_ARG_CHECKED(index, 0);
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| +  CONVERT_INT32_ARG_CHECKED(value, 1);
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| +  CONVERT_ARG_CHECKED(SeqOneByteString, string, 2);
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|    string->SeqOneByteStringSet(index, value);
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|    return string;
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|  }
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| @@ -15426,9 +15426,9 @@ RUNTIME_FUNCTION(RuntimeReference_OneByteSeqStringSetChar) {
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|  RUNTIME_FUNCTION(RuntimeReference_TwoByteSeqStringSetChar) {
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|    SealHandleScope shs(isolate);
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|    DCHECK(args.length() == 3);
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| -  CONVERT_ARG_CHECKED(SeqTwoByteString, string, 0);
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| -  CONVERT_INT32_ARG_CHECKED(index, 1);
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| -  CONVERT_INT32_ARG_CHECKED(value, 2);
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| +  CONVERT_INT32_ARG_CHECKED(index, 0);
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| +  CONVERT_INT32_ARG_CHECKED(value, 1);
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| +  CONVERT_ARG_CHECKED(SeqTwoByteString, string, 2);
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|    string->SeqTwoByteStringSet(index, value);
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|    return string;
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|  }
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| 
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