[Bug-apl] inner product with dfn

[Xiao-Yong Jin]

Hi, here goes another micro error.

      2 3+.{⍺×⍵}2 3
LENGTH ERROR
μ-Z__A_LO_INNER_RO_B[5]  (μ-IA μ-IB)←⊃μ-I[μ-N]
                               ^     ^
      )reset
      2 3{⍺+⍵}.{⍺×⍵}2 3
LENGTH ERROR
μ-Z__A_LO_INNER_RO_B[5]  (μ-IA μ-IB)←⊃μ-I[μ-N]
                               ^     ^
      )reset
      2 3{⍺+⍵}.×2 3
LENGTH ERROR
μ-Z__A_LO_INNER_RO_B[5]  (μ-IA μ-IB)←⊃μ-I[μ-N]
                               ^     ^
      )reset
      2 3+.×2 3
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