Asian shares edge higher, earnings caution caps

* MSCI Asia ex-Japan up 0.2 pct, Nikkei opens up 0.6 pct. * Dollar hits highest in more than 3 months vs yen. * Euro edges up to $1.3070. Asian shares edged higher on Tuesday but sentiment was cautious, after global shares faltered overnight on weak corporate results and outlook, and with A…

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Asian shares edge higher, earnings caution caps