number_decimfmtprops.cpp has unaligned static memory
Description
The file has the following code:
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char kRawDefaultProperties[sizeof(DecimalFormatProperties)];
...
void U_CALLCONV initDefaultProperties(UErrorCode&) {
new(kRawDefaultProperties) DecimalFormatProperties();
}We have a report that this causes a crash on ARM. The DecimalFormatProperties is being constructed into an unaligned char array, and the DecimalFormatProperties' MeasureUnit field assigns to an int32_t field in its ctor.
Possible fix: add alignas as follows:
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alignas(DecimalFormatProperties)
char kRawDefaultProperties[sizeof(DecimalFormatProperties)];